Hi guys new to this kind of stuff but here it go’s, I’ve not long bought a c4 loeb no.34 it’s had a new clutch fitting new timing belt and water pump and new drive belt, but for some strange reason when driving the car in 2/3/4 gear it’s making like a grinding noise... once put my foot down it go’s. lasts for like a second when car spends up. This is really getting on my whick... anyone shine a light on what or where it’s coming from would be great. Cheers